Vintage 70s dress, purple pink MOD pattern, convertible collar, knee-length long

Awesome 1970 shift dress, long sleeves, geometric pattern in pink, blue and purple. Has three golden buttons that can be undone to give a completely different look, from mock turtleneck to open collar. It zips from the front down to the waist, has long sleeves and the dress is about knee-length. Material is unknown, likely polyester, or any other similar thick synthetic material. Excellent with only minor wear on the golden buttons. Please see pictures for accuracy. This item has been laundered using scent free detergent and without fabric softener. This dress can be machine washed. MEASUREMENTS: My measurements are taken with garment lying flat (hips, bust and/or waist measurements are doubled). please measure your body to match the numbers below, as vintage sizing will differ greatly. If you require a specific measurement not provided in this listing, contact me and I will assist you promptly. Size label: none Fits like modern day size: Large (14) for tight fit, or Medium (12) for a loose fit Shoulder to shoulder: 16" Bust: 40" Waist: 38" Hips: 42" Length of sleeves: 23" Length: 39" Mannequin reference: Size Small Shoulders: 15” Bust: 33” Waist: 25" Hips: 34"